Integrated Design of Interceptor Guidance and Control Considering Modeling Error

doi:10.3969/j.issn.1000-1093.2013.09.018

Abstract

Abstract:

An integrated control law is designed by modifying the existing modeling results and using the intelligent control method for the guidance and control of interceptor during the terminal course. While the modeling error caused by approximate linearization and ignoring couplings is taken into consideration, a model error compensation is used to modify the interceptor dynamics. A nonlinear model for the integrated guidance and control (IGC) is obtained. The adaptive dynamic surface control is proposed for the controller design of this mismatched nonlinear system. The influence of mismatched uncertainties on the system performance is eliminated, and the term explosion in traditional backstepping method is voided. The integrated control law is used to establish a direct relationship between control objective and actuators command. Compared with the controller which ignores the modeling error in interception simulation, the proposed controller shows better interception performance.

Key words: control and navigation technology of aerocraft, interceptor, integrated guidance and control, modeling error, adaptive dynamic surface control

CLC Number:

TJ765

SONG Hai-tao, ZHANG Tao, ZHANG Guo-liang, YANG Wei-feng. Integrated Design of Interceptor Guidance and Control Considering Modeling Error[J]. Acta Armamentarii, 2013, 34(9): 1167-1172.

References

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